﻿// This software is part of the Autofac IoC container Copyright © 2017 Autofac Contributors http://autofac.org
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
// associated documentation files (the "Software"), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge, publish, distribute,
// sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
// NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
// OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

using System;
using Microsoft.Extensions.DependencyInjection;

namespace Autofac.Extensions.DependencyInjection
{
  /// <summary>Extension methods on <see cref="IServiceCollection"/> to register the <see cref="IServiceProviderFactory{TContainerBuilder}"/>.</summary>
  public static class ServiceCollectionExtensions
  {
    /// <summary>Adds the <see cref="AutofacServiceProviderFactory"/> to the service collection.</summary>
    /// <param name="services">The service collection to add the factory to.</param>
    /// <param name="configurationAction">Action on a <see cref="ContainerBuilder"/> that adds component registrations to the container.</param>
    /// <returns>The service collection.</returns>
    public static IServiceCollection AddAutofac(this IServiceCollection services, Action<ContainerBuilder> configurationAction = null) 
        => services.AddSingleton<IServiceProviderFactory<ContainerBuilder>>(new AutofacServiceProviderFactory(configurationAction));
  }
}